Barriers around convention center lifting

The process of removing the street barricades was expected to continue into the early hours of Wednesday, authorities said.

John Lisle, a spokesman for the D.C. Department of Transportation, said he understood that removal began about 6:30 p.m. Tuesday. He said he anticipated that the work would continue overnight.

--Martin Weil

Original post: The D.C. Department of Transportation has Tweeted that streets around the Washington Convention Center are starting to be opened up after the Nuclear Security Summit wrapped up. Originally, the word was that streets would be reopened around 8 p.m.